Related Experiment Video
Updated: May 24, 2026

Assessing the Viability of a Synthetic Bacterial Consortium on the In Vitro Gut Host-microbe Interface
Published on: July 4, 2018
Incoming pathogens team up with harmless 'resident' bacteria
Vittorio Venturi1, Daniel Passos da Silva
1International Centre for Genetic Engineering and Biotechnology, Padriciano 99, 34149 Trieste, Italy. vittorio.venturi@icgeb.org
Resident bacteria can surprisingly aid invading pathogens through various mechanisms, influencing disease progression. Understanding these host-microbe interactions is crucial for managing microbial diseases.
Area of Science:
- Microbiology
- Immunology
- Microbial Ecology
Background:
- Microbial diseases arise from host-pathogen interactions.
- The host harbors a complex community of resident bacteria, both beneficial and harmless.
- Interactions between invading pathogens and resident microbiota are understudied.
Purpose of the Study:
- To investigate the role of resident bacteria in host-pathogen dynamics.
- To explore the mechanisms by which resident bacteria influence incoming pathogens.
Main Methods:
- Literature review of recent studies on host-microbe interactions.
- Analysis of identified mechanisms of pathogen-microbe assistance.
Main Results:
- Resident bacteria can assist incoming pathogens through diverse mechanisms.
- Mechanisms include cell-cell signaling, metabolic exchange, immune evasion, and promoting pathogen establishment.
- Recent studies highlight these previously overlooked interactions.
Conclusions:
- Resident bacteria significantly impact pathogen behavior and disease development.
- Pathogen-microbe interactions warrant serious consideration in understanding disease severity and progression.
- Future research should focus on these complex host-microbe dynamics.
Related Concept Videos
Colonisation of Pathogens
Defense Against Bacterial Pathogens
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Defense Mechanism Against Infection
In addition, many body organ systems have unique defenses against infection. The skin is an intact, multilayered surface preventing invasion by microorganisms unless impaired. Mucous membranes lining the mouth, nose, and eyelids are barriers...
Introduction to the Human Microbiota
Reservoir of Infection
Microbiota of the Respiratory Tract

